CN1866709B - 发光二极管驱动电路 - Google Patents
发光二极管驱动电路 Download PDFInfo
- Publication number
- CN1866709B CN1866709B CN2006100927361A CN200610092736A CN1866709B CN 1866709 B CN1866709 B CN 1866709B CN 2006100927361 A CN2006100927361 A CN 2006100927361A CN 200610092736 A CN200610092736 A CN 200610092736A CN 1866709 B CN1866709 B CN 1866709B
- Authority
- CN
- China
- Prior art keywords
- led
- inductor
- switch element
- links
- smoothing capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/38—Switched mode power supply [SMPS] using boost topology
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005147453A JP2006324534A (ja) | 2005-05-20 | 2005-05-20 | 発光ダイオード駆動回路 |
JP2005-147453 | 2005-05-20 | ||
JP2005147453 | 2005-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1866709A CN1866709A (zh) | 2006-11-22 |
CN1866709B true CN1866709B (zh) | 2011-05-11 |
Family
ID=37425615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006100927361A Expired - Fee Related CN1866709B (zh) | 2005-05-20 | 2006-05-19 | 发光二极管驱动电路 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7436125B2 (zh) |
JP (1) | JP2006324534A (zh) |
KR (1) | KR101157849B1 (zh) |
CN (1) | CN1866709B (zh) |
TW (1) | TW200703183A (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101013559A (zh) * | 2007-01-30 | 2007-08-08 | 京东方科技集团股份有限公司 | 一种led亮度控制电路及液晶显示器背光源 |
JP2008235530A (ja) * | 2007-03-20 | 2008-10-02 | Matsushita Electric Ind Co Ltd | 発光ダイオード駆動装置、及びそれを用いた照明装置 |
JP5233042B2 (ja) * | 2007-05-08 | 2013-07-10 | アドシステム株式会社 | Led駆動回路 |
CN101626647B (zh) * | 2008-07-11 | 2012-11-28 | 立景光电股份有限公司 | 高功率消耗效能的发光二极管驱动系统及方法 |
GB2461895A (en) * | 2008-07-16 | 2010-01-20 | Elliot Makin | Light emitting diode driver |
JP5515931B2 (ja) * | 2009-04-24 | 2014-06-11 | 東芝ライテック株式会社 | 発光装置及び照明装置 |
GB2469821B (en) * | 2009-04-28 | 2011-08-10 | Alistair Macfarlane | Improved light source |
CN101882876B (zh) * | 2009-05-06 | 2013-04-03 | 新世纪光电股份有限公司 | 电子装置、定电流单元及稳定电流的方法 |
WO2011096585A1 (ja) * | 2010-02-03 | 2011-08-11 | シチズンホールディングス株式会社 | Led駆動回路 |
JP5533642B2 (ja) | 2010-12-27 | 2014-06-25 | Nkワークス株式会社 | Led駆動回路 |
KR101139025B1 (ko) * | 2011-10-10 | 2012-05-02 | 한빔 주식회사 | Led 구동 회로 |
CN102655704A (zh) * | 2012-04-18 | 2012-09-05 | 芯巧科技股份有限公司 | 发光二极管驱动电路 |
CN102800282B (zh) * | 2012-08-17 | 2014-10-22 | 苏州君嬴电子科技有限公司 | 一种led显示屏的识别方法及识别系统 |
CN103021344B (zh) * | 2012-11-22 | 2015-11-25 | 深圳市华星光电技术有限公司 | 一种背光驱动电路、背光模组和液晶显示装置 |
CN103096595B (zh) * | 2013-01-11 | 2014-11-05 | 深圳市华星光电技术有限公司 | Led驱动电路 |
WO2014123360A1 (ko) * | 2013-02-05 | 2014-08-14 | 주식회사 루멘스 | 엘이디 조명장치 |
CN104969663B (zh) | 2013-02-05 | 2017-06-23 | 株式会社流明斯 | Led照明装置 |
CN112689366B (zh) * | 2020-11-03 | 2021-09-07 | 北京显芯科技有限公司 | Led驱动系统及电子设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515261A (en) * | 1994-12-21 | 1996-05-07 | Lumion Corporation | Power factor correction circuitry |
US5543704A (en) * | 1994-06-08 | 1996-08-06 | Telefonaktiebolaget Lm Ericsson | Pulse width modulated DC-to-DC boost converter |
CN1578095A (zh) * | 2003-07-07 | 2005-02-09 | 罗姆股份有限公司 | 负载驱动装置及其携带式机器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0767326A (ja) * | 1993-08-26 | 1995-03-10 | Matsushita Electric Works Ltd | 電源装置 |
SE519550C2 (sv) * | 1997-01-03 | 2003-03-11 | Ericsson Telefon Ab L M | Drivkrets samt förfarande för att driva en sådan drivkrets |
US6466188B1 (en) * | 2000-01-20 | 2002-10-15 | International Business Machines Corporation | DC-DC converter with current sensing for use with non-linear devices |
JP4052998B2 (ja) * | 2003-11-25 | 2008-02-27 | シャープ株式会社 | 電源回路及びそれを用いた電子機器 |
-
2005
- 2005-05-20 JP JP2005147453A patent/JP2006324534A/ja active Pending
-
2006
- 2006-05-17 US US11/435,408 patent/US7436125B2/en not_active Expired - Fee Related
- 2006-05-17 TW TW095117511A patent/TW200703183A/zh unknown
- 2006-05-19 CN CN2006100927361A patent/CN1866709B/zh not_active Expired - Fee Related
- 2006-05-20 KR KR1020060045401A patent/KR101157849B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5543704A (en) * | 1994-06-08 | 1996-08-06 | Telefonaktiebolaget Lm Ericsson | Pulse width modulated DC-to-DC boost converter |
US5515261A (en) * | 1994-12-21 | 1996-05-07 | Lumion Corporation | Power factor correction circuitry |
CN1578095A (zh) * | 2003-07-07 | 2005-02-09 | 罗姆股份有限公司 | 负载驱动装置及其携带式机器 |
Also Published As
Publication number | Publication date |
---|---|
US20060261747A1 (en) | 2006-11-23 |
US7436125B2 (en) | 2008-10-14 |
JP2006324534A (ja) | 2006-11-30 |
KR20060120508A (ko) | 2006-11-27 |
CN1866709A (zh) | 2006-11-22 |
TW200703183A (en) | 2007-01-16 |
KR101157849B1 (ko) | 2012-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160317 Address after: Chiba County, Japan Patentee after: SEIKO INSTR INC Address before: Chiba, Chiba, Japan Patentee before: Seiko Instruments Inc. |
|
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Chiba County, Japan Patentee after: EPPs Lingke Co. Ltd. Address before: Chiba County, Japan Patentee before: SEIKO INSTR INC |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20190519 |